* {
    margin: 0;
    padding: 0;
    font-size: 20px;
  }
  
  ul, ol, li {
    list-style: none;
  }
  
  input, button, select, textarea {
    outline: none;
  }
  
  button, select {
    cursor: pointer;
  }
  
  a, a:hover, a:link, a:active {
    text-decoration: none;
    color: #333;
  }
  
  img {
    width: 100%;
    height: 100%;
    display: block;
  }
  
  .container, footer {
    width: 100%;
    margin: 0 auto;
  }
  
  .footer,
  .header {
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: black;
    background-color: #ccc;
    font-size: 34px;
    font-weight: 700;
    position: relative;
  }
  
  .header > p {
    font-size: 20px;
    color: #333;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 30px;
    display: none;
  }
  
  .header > p.active {
    display: block;
  }